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nsulin injections may soon be a thing of the past for diabetics thanks to nano-technology. At UCSF Professor of bioengineering, Tejal Desai, implants millions of pancreatic cells that secrete insulin into tiny capsules that can be implanted into the body in an effort to create an artificial pancreas. When blood sugar flows inside the capsule, it stimulates the cells to produce insulin to control sugar levels. The device has nano pores, pores so small that the body's antibodies cannot get in to attack the cells, but large enough that the insulin can flow out and into the body.